Here is the full list of all 12 AMY trophies - there are 7 bronze, 4 silver and 1 gold.
Avoid being seen by the enemy by concealing yourself in a hideout
Finish the game in Easy mode
Finish the game in Normal mode
Finish the game in Hard mode
Finish Chapter 05
Finish Chapter 04
Finish Chapter 03
Push an enemy onto an electrical device
Finish Chapter 02
Complete a level without the monsters draining Amy's energy
Finish Chapter 01
Find Amy